intermittant ABS light prohibits shifting out of park,cruise

[93camrywagon]

I am also having an ABS light problem on my 93 Camry LE 6 cyl.wagon, but my problem is intermittant. However, when the ABS light does come on, my car won't shift out of park. Also occaisionally (actually, usually), engaging my cruise control will make the ABS light come on also disengaging the cruise control. The cruise will not function when the ABS light illuminates. Any suggesrtions would be appreciated. I will note that when the light is on it seems to help if I tap on the in dash fuse box on the drivers side, but I have been unable to locate any fuse in that box which corresponds with either the ABS or cruise, and all the fuses are OK.